package cn.tedu.order.tcc;

import cn.tedu.order.entity.Order;
import cn.tedu.order.mapper.OrderMapper;
import io.seata.rm.tcc.api.BusinessActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
@Component
public class OrderTccActionImpl implements OrderTccAction {
    @Autowired
    private OrderMapper orderMapper;

    @Transactional
    @Override
    public boolean prepare(BusinessActionContext ctx, Long orderId, Long userId, Long productId, Integer count, BigDecimal money) {
       orderMapper.insertFrozen(new Order(orderId,userId,productId,count,money,0));
       //保存一阶段的成功标记
        ResultHolder.setResult(OrderTccAction.class,ctx.getXid(),"p");
        return true;
    }

    @Transactional
    @Override
    public synchronized boolean commit(BusinessActionContext ctx) {
        //标记不存在，二阶段已经执行过、一阶段失败
        //二阶段不再执行
        if(ResultHolder.getResult(OrderTccAction.class,ctx.getXid())==null){
            return true;
        }
        Long orderId = Long.valueOf(
                ctx.getActionContext("orderId").toString());
        orderMapper.updateStatus(orderId,1);
        //二阶段执行完成，删除标记
        ResultHolder.removeResult(OrderTccAction.class,ctx.getXid());
        return true;
    }

    @Transactional
    @Override
    public synchronized boolean rollback(BusinessActionContext ctx) {
        if(ResultHolder.getResult(OrderTccAction.class,ctx.getXid())==null){
            return true;
        }
        Long orderId = Long.valueOf(
                ctx.getActionContext("orderId").toString());
        orderMapper.deleteById(orderId);
        ResultHolder.removeResult(OrderTccAction.class,ctx.getXid());
        return true;
    }
}
